Engines and Accessories

With nearly 30 years 2 cycle engine experience, at Buller Built we know what is required to build winning engines. Look inside one of our motors and you will clearly see the quality of workmanship and detail that goes into building an Open or Blueprinting a stock engine. Extensive dyno, flow bench and track testing has been done by Buller Built when developing our engine packages.

Included with each motor is complete break-in instructions, a detailed set up sheet dealing with pipe, air density, clutch, fuel, temp, oil, RPM and maintenance recommendations.

For we will break in your motor on our computerized dyno/ accelermeter and supply you with a print out.

Listed below are our most popular engine packages. We have experience with nearly every 2 Stroke engine made. If you have a question about your particular engine please give us a call.

Aluminum adaptor plates for use with Buller 2 Cycle motor mount or other brands of mounts requiring an engine sub-plate with standard 3" center to center, 3/8" bolt spacing. Used with the Buller Jackshaft Assembly to connect the engine to the jackshaft assembly.

The new and improved Buller Drive jackshaft assembly is quality CNC constructed for precision and accuracy of billet aluminum which makes it lighter, stronger and more versatile than any other jackshaft system available. New is the 2 piece 57 tooth pulley or 45 tooth #35 sprocket / hub assembly. The newly designed and lightened base plate replaces your existing motor mount and is slotted to accept a third bearing or engine adaptor plate. (Adaptor plate is not included with the Buller Drive assembly kit.) The mounting legs bolt onto the base plate in 2 mounting locations which allows for drive line offset for chassis or tire clearance. The base plate assembly starts 2" ahead of the front mounting leg giving you ample forward movement for chain or belt adjustment. The aluminum tube fits into a dovetail style joint on the base plate which allows the tube to adjust left or right for perfect chain or belt alignment. The kit includes billet aluminum butterfly clamps.

The Buller Motor Mounts are angled mounts, CNC constructed of billet aluminum for precision and light weight. The mounts offer the unique feature of different positions for left to right engine offset in 1/4" increments. The mounts fit American or International frame spacing. Available for 1 1/4" or 1 1/8" frame rails. The mounts include billet aluminum butterflys.

The Buller Third Bearing Assembly features a full 5/8" thick billet aluminum construction. Redesigned upright features lightweigh construction and easier clutch exposure. The clutch support plate bolts directly to the motor with 2 bolts protruding from the support plate to attach to the motor mount. Available for any current engine model.

STYLE A fits standard hub clutch. STYLE B fits extended hub clutch.

The Yamaha style of 3rd bearing is also available with bolt on mounting legs which give you a motor mount and 3rd bearing assembly all in one, eliminating excess bulk and weight.